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ex.1,2.......................

Ex12 class=

Răspuns :

unde e • aduni puterile,baza ramanand la fel
unde e : scazi puterile,baza ramanand la fel

1)

a)7^14•7^31=7^45

b)16^11•16^22=16^33

c)3^3•3^8=3^11

d)5^9•5^14=5^23

e)23^12•23^45=23^57

f)5^32•5^131=5^163



2)

a)2^91:2^21=2^70

b)75^84:75^81=75^3

c)3^25:3^18=3^7

d)5^91:5^52=5^39

e)7^24:7^9=7^15

f)14^45:14^20=14^25


^-la puterea.

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